Portable computer



FIG. 1 is a perspective view of a portable computer showing our design;

FIG. 2 is a front elevational view thereof;

FIG. 3 is a rear elevational view thereof;

FIG. 4 is a left elevational view thereof;

FIG. 5 is a right elevational view thereof;

FIG. 6 is a top elevational view thereof;

FIG. 7 is a bottom elevational view thereof;

FIG. 8 is a partially enlarged section thereof “8” in FIG. 4; and,

FIG. 9 is a partially enlarged section thereof “9” in FIG. 6.

The ornamental design for a portable computer, as shown and described.